https://bugzilla.wikimedia.org/show_bug.cgi?id=19082
Web browser: Mozilla Firefox 3.0.x
Summary: 500 Internal Server Error when trying to upload 98 MB
file to Commons
Product: Wikimedia
Version: unspecified
Platform: All
OS/Version: All
Status: NEW
Keywords: shell
Severity: enhancement
Priority: Normal
Component: General/Unknown
AssignedTo: [email protected]
ReportedBy: [email protected]
I'm repeatedly getting an internal server error (and a blank page) when trying
to upload a large (but still < 100 MiB) file to Commons. Here are the request
and headers from one attempt, courtesy of Firebug:
Request:
> Host: commons.wikimedia.org
> User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.10)
> Gecko/2009042523 Ubuntu/9.04 (jaunty) Firefox/3.0.10
> Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language: en-us,en;q=0.5
> Accept-Encoding: gzip,deflate
> Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive: 300
> Connection: keep-alive
> Referer:
> http://commons.wikimedia.org/w/index.php?title=Special:Upload&uselang=fromgov
> Cookie: <deleted>
Response:
> Date: Thu, 04 Jun 2009 23:02:39 GMT
> Server: Apache
> X-Powered-By: PHP/5.2.4-2ubuntu5wm1
> Cache-Control: private, s-maxage=0, max-age=0, must-revalidate
> Content-Encoding: gzip
> Vary: Accept-Encoding
> X-Vary-Options: Accept-Encoding;list-contains=gzip
> Content-Length: 20
> Content-Type: text/html
> X-Cache: MISS from sq27.wikimedia.org, MISS from knsq26.knams.wikimedia.org,
> MISS from knsq29.knams.wikimedia.org
> X-Cache-Lookup: MISS from sq27.wikimedia.org:3128, MISS from
> knsq26.knams.wikimedia.org:3128, MISS from knsq29.knams.wikimedia.org:80
> Via: 1.0 sq27.wikimedia.org:3128 (squid/2.7.STABLE6), 1.0
> knsq26.knams.wikimedia.org:3128 (squid/2.7.STABLE6), 1.0
> knsq29.knams.wikimedia.org:80 (squid/2.7.STABLE6)
> Connection: close
While I can't be sure of what's causing this, I'd suspect it may be because the
PHP config variables post_max_size and memory_limit are set to exactly 100 MB
in Wikimedia's php.ini file (which is why I'm filing this as a Wikimedia bug).
Thus, my guess would be that MediaWiki is hitting the 100 MB memory limit,
causing PHP to abort execution.
According to PHP documentation, memory_limit should exceed post_max_size, which
in turn should exceed max_upload_size. If we do want to support uploading
files of up to 100 MB, I'd suggest bumping post_max_size slightly to, say, 101
MB and memory_limit up to, say, 120 MB to account for general overhead.
BTW, are we keeping any error logs that could be used to confirm the cause of
this error?
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